Five per cent to joel



Oct 11 ,1927. 1,644,974

v. E. ANKARLO I CONNECTING ROD BEARING Filed July 5, 1924 4 Sheets-Sheet1 INVENTOR 7114 151 5 mm BY I 211% 19 Mani ATTO NEYS 1 644,974 Oct. 111927. v. E. ANKARLQ CONNECTING ROD BEARING Filed July 5. 1924 4Sheets-Sheet 2 INVENTOR z/Mza a mun ATTORNEYS.

l 1927. 1,644,974 Oct 1 v. E. ANKARLO CONNECTING ROD BEARING Filed July5, 1924 4 Sheets-Sheet 3 Fifi-iii:

FiqlQ Fwq9 my I; g lnve ntor BY EW,MM,

AttorneYs Oct. 11, 1927.

4 Sheets-Sheet! u, lnvzncor AttornQYS Filed July 5. 1924 V E ANKARLOCONNECTING ROD BEARING Patented Oct. 11, 192 7. V

UNITED ST T vic'ron n. ANKABLO, or DIILUTH, MINNESOTA, assienon orrivnrma' CENT ro rnnononn J. seen, or summon; WISCONSIN; FIVE PERCENTTQJOELQBODIN, p 1 or nunu'rn, amnaso'ra; AND FIVE PER en xrr To a.M. scnucnr, or MILWAUKEE,

WISCONSIN. a

coN norine-n'on BEARING. I

g Application filed July 5 sequent; "relative displacement and strainupon themembers. I l u I I I It is an object of the present lnventlon toprovide a connection between the side rod and crank-pin, such as topermit relative angular displacement between theparts with out strain orunequal wear upon? the parts and contactingsurfaces.

It is a further ob'ect to prov de a connection ofthis character which isadapted to automatically take up wear as the wear ocours and which isadapted to bea'djusted to compensate for excessive amounts of wear.

Itiisalso an object to rovide a constructionwhich is simple in esign,composed of but few parts and whichmay be readilyap V lied to existinginstallations without mate-, rialchange therein. 4 r v I I Other andfurther ob]ects will appear as the description proceeds. I haveillustrated a preferred of my invention in the accompanymg'drawings, inwhich- Figure 1 is a side elevation of the connec-' tion constructedaccording to the present 111- ventiony 1 i A Figure 2jis' a horizontalsect on taken on line 2-2 ofFigure 1; j t

Figure'3 is a vertical: section takenon llne 33*ofFigur'e1; a

Figure 4 is a perspectlve vlew ofone of the bearing blocks Figure 5 is aperspective view of the wedge key. 1 I 1 p V Figure .6 is. a perspectiveview of; the

wedge block;and

I showlng the parts .angularly; displaced, the v Figure7 's a plan viewon a reduced scale displacement being exaggerated for the sake ofclearness. k FigureSisYa sideview of a slightly modiembodiment 1924.Serial No."724,546.

Figure 9 is a plan View of the same.

Figure 10 is a side View of a further modified'form, p I Figure 11 is aside. view of a doubleconnecting rod indicating another arrangement ofthe parts, i

The side rod 11 is provided with the'large j 6O 'connectingend 12 whichlatter has formed therein the slot 13. The hardened steel liner 14: 1sfittedagainst the upper face ofthe slot, f

the liner being provided with the flanges 15 which engage the front andrear faces of the 1 connecting rod end and'prevent lateraldisplacementof the liner. The lower face of the slot is provided with a similarliner 16.-

The block 22 is fitted upon the outer face of the shim 21and isprovidedwith the dowel pins 23 which passthrough openings in the shimand enter recesses in the brass. The shim 24; is similarlylocatediuponthe opposite face of the brass 18'and isretai-ned in place bythe'dow'elpins 25 extending from the block 26. The saddle 27 i s fittedintothe end of the slot in the side rod end and ispro I vlded" with theflanges 28 overhanging the front and'rear faces of therod and with theconcavesurface 29 which engages the convex surface of the block 22. Thesaddle 30 is provided with the :concavesurfacej 31 en.- I gaging theconvex surfaceof the block 26.

'- Thewedgek ey 32 engages the face 33 of the saddle 3O being retainedagainst lateral,

displacement by the flanges 34. spaced apart formed in the end of theside rod slot 13. The lower face 37 of the jwedgekey32 is engagedby thewedge surface '38 ofv the wedge block 39. This block 39 is retainedbetween flanges 40 formed upon thefwedge key 32.- The wedge block fitsin the exten 'sion 'tlof the slot 13 and is fitted within flanges 42formed on the side rod end and the flanges 43 formed on the liner 16.The

' block 39 provided with the threaded extension l which carries the nut45 and lock nut 46. The spring 47 surrounds the threaded portion 44 andis held between the nut -Lt5 and the end wallet?) of the extendedportion a1 of the slot.

In the operation of the connection when the parts are angularlydisplaced, as shown in Figure 7, the brasses l7 and 18, the shims 21 and2t and the blocks 22 and 26 swing with the crank pin. The surfaces ofthey brasses thus move relative to the liners l4 and 16. Also thearcuate surfaces of the blocks 22 and 26 move relative to the coactingsurfacesof' the saddles 27 and 30. These saddles 2'? and 30 togetherwith the wedge key and wedge block 39 remain in fixed relation to theside rod. It will be seen that this relative movement occurs betweensurfaces shaped to permit it without strain or torsional strain upon anyof the parts.

J As wear occurs, either upon the bearing faces 19 and 20.0f the brassesor upon the coacting faces of the blocks and saddles, the wedge key 32-will move up under thrust from the wedge block 39 which thrust iscaused by the spring 47. The parts will thus'be maintainedat all timesin intimate engagement.

The angle which the plane of the surface 35 of the'wedge key and surface36 of the side rod makes-with theline of thrust transmitted from thecrank pin is such as to prevent any downward displacement of the wedgekey 32 under this thrust. Further,

, the angle which'theplane of the contacting tact with theadjacentparts.

surface 37 of the wedge key and 3.8 of the wedge block makes withrelation to the thrust transmitted by the spring 4'? issuch as to permitthis thrust to readily raise the wedge key 32 to maintain it in propercon- By means of the nut and lock nut 46 the spring i? may be adjustedto give the thrust necessary under the circumstances.

While shims have been shown at 21 and 2 it will be understood that wheninitially installed, the parts may be of such size and relation that noshims are necessary. hen, however, such wear has taken place that theupper face of the wedge key approaches the liner lithe parts may beremoved and which show another embodiment of the same inventive ideainvolved, I show a connecting rod for an engine or any machine with asingle automatic bearing device ,the slot B has an inclined or wedgeshaped end wall B, and a pair of brasses F and G which are fitted insaid slot to engage a pin or shaft H. I

In the slot B are also fitted a pair of saddles 2', having convexcylindric surfaces M and a channel J. A wedge key block M is also fittedin said slot, the key block being provided with a wedge face 0 on itsend, lowerkey block M having akey way S on face n to receive akey slinthe .rod (see Figs. 8,9 and 10) I i Slot Bin the (side rod shown in Figs..=8 and 9 is provided with a key wayw to rece ve die-plateL whichisthus fitted tightly v in 10 13 and in k y ay n a is al ru vide'dw thconcave cylindrio-sur-f aces to receive the convex surface or, face ofsaddle Th g ide hole E andkey S, .(Figs S,

10 and 11). protect key blocks m andcause them to stay in fixed relationwithsaid rods.

At is shown a hole or passage-bored-in the side rod in which iscarr-ieda, wedge T having thereon" inclined or wedgeface 0' which is formed to,fit wedge face 0 on kcv block m inFigs. 8,, 9 and 10.. i i s As shown inFigureBpH represents a shaftwhile-U in- Fig 9 is a-pin. .P.;P.'in"dicatecylindric surfaces on brasses- F'andG in Fig. 9, and Y indicates thespace between opposing ends of the brasses F and G in Fig- 9. Y 1 j j isin Fig. 10 is shown a side elevation ofa connecting rod provided withadouble se of automatic ports to render lblDOlG' etlis cient to take upwear and to permit greater ad ustinent between centers}: This connecting rod is providedwitha slotB. wherein s formed a pair of wedgeface'end walls E inclined in same direction, butreverselv positioned,and'a-pair of'key-blocks'm'are litted to such wedge face end walls Bwithin the slot. l 1 In this rod shown inFig. 10, a pairof sad dlesz'are fitted and adapted to receive key blocksm, and also to fit:blrassesFand-G; key blocks m have concave cylindric surfaces to receivethe convex cylindric s'urfacesof saddle 2', and said saddle is providedwith a channel J, as shown in Fig; 9 to receiveribs (2 PIOJQCtlIlg frombrasses F and G t all of ithese to fitin the slot B inthe'end of theside rod. f #The rod shown in Figure 10 has twoiho'les or passages boredtherein wherein wedge blocks T are fitted, said blocks having inclinedor wedge faces'to cooperate with the wedge faces 0 of key blocks m,as-in'Figs/S and 10. In the holes or passages-C which extend in oppositedirections, springs R are placed one end bearing again t th w fl bloc-ksthe butt ends of which are provided are internally threaded as at G intowhich threaded portion the set screws C are screwed forming abutinentsfor the outer ends of springs TR, and by whiclithey are adjusted r I--In raising or lowering key blocks m by means of wedge blocks T,springs R and set screws C ,,the "center between pins will be easilyfound. This form also eliminates shims. f

carries the lateral set orbinding screws D adapted to cooperate with thewedge blocks T; thus by setting the lower screw D tight against thelowerwedge block T this block and the associated spring R, key block m,saddle z and brass F will become stationary on that particular side. Thereverse of this situation will result from the tightening of.

the upper lateral set screw D. By setting both screws D tight againstboth wedge blocks T, at the same time, then bo'tli'sides of the assemblywill become stationary.

By releasing one set screw from its wedge block, thisblock and itsassociated spring, key block, saddle and brass will work automaticallyon that particular side. Byreleasing both set screws D from theirwedgethe respective gnideways and'Sare keyways to receive the keys S. v

From the above description, it will be readily understood that I providea side rod and connection which presents the advantages of permittingthe required degree of free swivelling movement in a horizontal planewithout involving complicated or expensive structure, or liability tocramping in operation, and one which is capable of automatic andaccurate adjustments to compensate for wear. i Vhile I have herein shownseveral embodiments of my invention, it is to be under- I stood that Icontemplate such other changes and modifications as come within thespirit blocks.

convex. cylindric outer surfaces, saddles fitted in said slot and'coacting with said I blocks, said saddles having complemental concavecylindric inner surfaces to receive the convex surfacesof the aforesaidblocks.

I 2. A connecting rod for engines, having a slot:in its end, a pair ofcrank pin brasses adapted to engage a crank pin, and fitted in saidslot, blocks fitted in said slot and adapted to cooperate with saidbrasses, said blocks having convex cylindric outer surfaces, saddlesfitted in saidslot, the inner surfaces of p v i said saddles beingcomplemental concave cy The side rod illustrated inFig. '10, alsomeansadapted to force the saddles into en gagement with the blocks- 13.Aconnecting rod havinga slot in one end, a pair of crank pin brassesadapted to engage a crank pin and fitted in said slot, blocks fitted tosaid brasses and within the slot,said blocks each having a convexcylindric outer surface, saddles fitted in said slot and each having acomplemental concave cylindric inner surface to receive the convexsurface of one "of said blocks, one of the saddles being provided with aguideway opposed to the concave surface and said slot 'havingan inclinedend wall, a wedge key within said slot and engaging the inclined walland guideway, and resilient means engaging said key in such mannerwhereby'to force one of the blocks toward an adjacent brass.

' 4 A connecting rod having a slot in one end, a pair of brasses fittedin said slot and 1 adapted toengage a crank pin, blocks fitted to saidbrasses and each having a convex cyposed to the concave surface and saidslot having an oblique end wall, a wedge key engaging the guideway andoblique wall, and

a spring pressed wedge block engaging the wedge key in such mannerwhereby to move toward an adjacent brass.

5. A connecting rod for locomotives and having a slot in its end-,-apair of brasses the wedge key to force one of said blocks adapted toengage a crank pin and fitted insaid slot, blocks having dowelpinsprojecting' therefrom and secured to the outer faces of saidbrasses, by said dowel pins, said blocks having convexcylindricsurfaces, saddles fitted in said. slot and having complemental concavecylindric surfaces adapted to receive the said convex surfaces of the,6. 'A connecting rod for locomotivesand having a slot in its end, apair of'brasses fitted in said slot and adapted to engage a crank pin,blocks having dowel pins projecting therefrom andsecuredto the outerface of said brasses by said dowel pins, shims positioned between saidblocks and brasses and retained in place by means of said dowel pins,said blocks each having a convex cylindrical surface, and saddlesmounted in the slot and each having a cooperating concave cylin'dricsurface to receive a convex surface of one of said blocks.

7. A connecting rod having a slotted end provided with a passageextending from said slot, a bearing member mova-blymounted in said slot,a wedge-shaped member mounted in said slot and movable at an angle tosaid bearing member, a Wedgeeshaped block mounted in said passage andmovable at an angle to said wedge-shaped member, a spring disposed insaid passage and acting between. said block and the walls of saidpassage and means adjustably carried by said block for regulating thepressure of said spring against said block, thereby to urge said blockinto engagement with said Wedge-shaped member. v

8. A connecting rod havinga slotted end provided with a passageextending from said slot, a bearing member movably mounted in said slot,a wedge-shaped member mounted in said slot and movable at an angle tosaid bearing member, a Wedge-shaped block mounted in said passage andmovable atau. angle to said wedge-shaped member, said block beingprovided with a threaded rod and a nut adjustable thereon, and a springdisposed about said rod andbetween said nut and the walls of saidpassage.

V IGTOR E. ANKARLO.

